18217040

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3733}}^1$

素因数の和:3807

約数の個数: 40

約数和(自身を含む): 43060488

約数和(自身を除く): 24843448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 3733, 4880, 7466, 14932, 18665, 29864, 37330, 59728, 74660, 149320, 227713, 298640, 455426, 910852, 1138565, 1821704, 2277130, 3643408, 4554260, 9108520, 18217040]

約数ペア:

[(1, 18217040), (2, 9108520), (4, 4554260), (5, 3643408), (8, 2277130), (10, 1821704), (16, 1138565), (20, 910852), (40, 455426), (61, 298640), (80, 227713), (122, 149320), (244, 74660), (305, 59728), (488, 37330), (610, 29864), (976, 18665), (1220, 14932), (2440, 7466), (3733, 4880)]